Battery Negative Cable Disconnection and Connection LS7 or LS9

Warning: When performing service on or near the SIR components or the SIR wiring, the SIR system must be disabled. Refer to SIR Disabling and Enabling . Failure to observe the correct procedure could cause deployment of the SIR components, personal injury, or unnecessary SIR system repairs.

Warning: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

1. Record all of the vehicle preset radio stations.
2. Record the radio Theftlock® code, if applicable. Refer to Radio/Audio System Description and Operation.
3. Turn OFF all the lamps and the accessories.
4. Make sure the ignition switch is in the OFF position.
5. Open the RH rear compartment storage bin to access the battery.



6. Remove the negative battery cable to battery nut and separate the cable from the battery.

Caution: Refer to Fastener Caution in the Preface section.





Note: Clean any existing oxidation from the contact surface of the battery cable using a wire brush before installing the battery cable to the battery.

1. Connect the battery negative cable to the battery and install the negative battery cable nut and tighten to 8 N·m (71 lb in).
2. Close the RH rear compartment storage bin.
3. Unlock the Theftlock® radio, if applicable.
4. Program the radio stations back into the radio as recorded at the beginning of the procedure.
5. Set the clock to the current time. Refer to Radio/Audio System Description and Operation.
6. Perform the reinitialization of the power windows. Refer to Power Window Reinitialization.

Battery Negative Cable Disconnection and Connection LS3

Warning: When performing service on or near the SIR components or the SIR wiring, the SIR system must be disabled. Refer to SIR Disabling and Enabling . Failure to observe the correct procedure could cause deployment of the SIR components, personal injury, or unnecessary SIR system repairs.

Warning: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

1. Record all of the vehicle preset radio stations.
2. Record the radio Theftlock® code (if applicable). Refer to Radio/Audio System Description and Operation.
3. Turn OFF all the lamps and the accessories.
4. Make sure the ignition switch is in the OFF position.



5. Remove the negative battery cable to battery nut and separate the cable from the battery.

Caution: Refer to Fastener Caution in the Preface section.





Important: Clean any existing oxidation from the contact surface of the battery cable using a wire brush before installing the battery cable to the battery.

1. Connect the battery negative cable to the battery and tighten to 8 N·m (71 lb in).
2. Unlock the Theftlock® radio (if applicable).
3. Program the radio stations back into the radio as recorded at the beginning of the procedure.
4. Set the clock to the current time. Refer to Radio/Audio System Description and Operation.
5. Perform the reinitialization of the power windows. Refer to Power Window Reinitialization.